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Own 2014 JGC. Had the emissions work done in June and experiencing lower mpg and turbo lag as most have. Regen a little more than before too. Also had to spend 771 bucks having the injectors cleaned because of check eng lt showing DTC fuel lower than expected. Been 6 weeks and appears to have solved the problem. Though injectors covered under ext. warranty this is not according to dealer. One of the parts of the service was adding a diesel lubricant 68194640-AB. Wondering if should add this myself every so often to prevent this from occurring again and if this is related to emissions update?
 

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It might be. Mine is in the shop now and is having to get a whole new intake manifold since it was so sooted up it messed up the swirl flappers. I’m at about 96k on the odometer and haven’t had an injector problem. Yet. But I change my filters at every other oil change.
 

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It might be. Mine is in the shop now and is having to get a whole new intake manifold since it was so sooted up it messed up the swirl flappers. I’m at about 96k on the odometer and haven’t had an injector problem. Yet. But I change my filters at every other oil change.
KevinK, did the dealer/FCA cover your intake manifold repair?
 

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Yes. After the AEM update, my wife signed some contract that covered a whole bunch of stuff that would be repaired/replaced due to the whole emissions lawsuit. Thank God it was. It’s like 800 for a new one and a mess to change it out. Bad side, they broke 2 glow plugs in the process and had to change those as well free of charge.
 
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